Update remove.md

This commit is contained in:
Angelos Chalaris
2017-12-15 13:50:09 +02:00
committed by GitHub
parent 4e7085b5ba
commit a95b89a958

View File

@ -1,14 +1,13 @@
### Remove
Remove elements from `arr` that are returns truthy. Use `Array.filter()` to finding the matching elements and `Array.reduce()` to remove elements using `Array.splice()`.The `func` is invoked with three arguments: (value, index, array).
Use `Array.filter()` to find array elements that return truthy values and `Array.reduce()` to remove elements using `Array.splice()`.
The `func` is invoked with three arguments (`value, index, array`).
```js
const remove = (arr, func) =>
Array.isArray(arr) ?
arr.filter(func).reduce((acc, val) => {
arr.splice(arr.indexOf(val), 1)
return acc.concat(val);
Array.isArray(arr) ? arr.filter(func).reduce((acc, val) => {
arr.splice(arr.indexOf(val), 1); return acc.concat(val);
}, [])
: [];
: [];
//remove([1, 2, 3, 4], n => n % 2 == 0) -> [2, 4]
```